Johh hubert mxesseh ahd hubert walter htesseh



ac. 3, m9. J. H. NIESSEN ET AL 1,738,387

DOUBLE ACTING CATCH Filed May 26, 1927 INVENTOR.

John Dfivbefli Niessen ambm waktermessen ATTORNEYJ'.

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Patented Dec. 3, 1929 i.sn stares FEQEZ JOHN HUBERT NIESSEN AND HUBEBTWALTER NIESSEN, OF FAIR OAKS, GALIFGRNIA DOUBLE-ACTEN G CATCHApplication filed May 26, 1927. Serial No. 194,386.

This invention relates generally to closure fasteners, and has moreparticular reference to an improved form of sliding spring proj ecteddouble-actingcat'ch embodying a catch bolt of the bevel tapered or wedgenose type.

The primary object of the present invention is to provide a. catch ofthe above kind embodying improved simple means for securing adjustmentsof the catch bolt so that it may project for proper cooperation with akeeper despite changes which take place in the relation between theparts or members to be fastened together.

Other objects will appear as the nature of the invention is betterunderstood, and the same consists in the novel form, combination andarrangement of parts hereinafter more fully described, shown in theaccompanying drawing and claimed.

In the drawing, wherein like reference characters indicate correspondingparts throughout the several views,

Figure 1 is a fragmentary view, partly in elevation, and partly insection, showing our improved catch operatively associated with a dooradapted to open in either direction;

Figure 2 1s a new ofthe devlce shown in Figure 1, partly in top plan andpartly in horizontal section;

Figure 3 is a vertical section taken substantially upon line 3 3 ofFigure 1;

Figure & is an enlarged central longitudinal sectional view of the catchremoved from the door;

Figure 5 is a transverse section 55 of Figure 4:;

Figure 6 is a section upon line 66 of Figure 4C; and t Figure 7 is aperspective view of the Washer forming part of the means for retainingthe catch bolt head in adjusted position,

Referring more in detail to the drawing, the present fastener is adaptedfor use in various ways to secure the members to be fastened, the samebeing herein illustrated as applied to a swinging door 5 and cooperatingwith a suitable keeper plate 6 fastened to an adjacent door jamb orframe'7. However, it is obvious that this type of catch is on linecapable of other uses such as the fastening or adjusting of windowsashes and the like.

The present catch consists of the usual cylindrical casing 8 of hollowtubular form and having an inner end wall 9 provided with a polygonalcentral aperture through which is freely slidable the similarly shapedreduced stem portion 10 of the catch bolt, whereby said stem portion isrest-rained against axial rotation relative to the casing. The casing 8is open at its outer end and provided at this end with the usual annularflange 11 for engagement with the surface of the member 5 at the outerend of a socket or recess within which the casing 8 is fitted, whichsocket or recess is provided with a reduced portion 12 at the innerendof the casing to furnish clearance for the stem 10 in the operationof the catch. Slidably and rotatably fitted Within the outer end portionof the casing 8 is the usual bolt head 13 having a cylindrical bodyportion and a wedge-shaped or tapered nose 14. The bolt head 13 isprovided with an axial socket 15-which opens through its inner end andinto which is adjustably threaded the enlarged adjacent end portion 16of the stem'10, it being thus apparent that by turning the head 13 itmay be threaded off of or onto the threaded part '16 of the stem 10 tothe required extent whereby the effective length of the catch bolt ischanged. Disposed within the casing 8 and surrounding the stem 10 is ahelical compres sion spring 17 which bears atone end against the ninerend wall 9 of the casing and at its other end against a washer 18whereby the catch bolt is projected for a distance limited by the head19 provided upon the inner end of the stem 10 and normally engaging theexternal face of the end'wall 9.

In View of the above it will be seenthat by rotating the head 13 it maybe adjusted to normally projected desired distance beyond the open endof the casing 8 for properly bridging the space between the members 5and 7 to be fastened for correct engagement with the keeper 6. p

The present invention more particularly relates to the manner of ormeans for retaining the bolt head 13 in adjusted position or againstaccidental rotation. As shown, the enlarged threaded portion 16 of thestem 10 forms a shoulder at the inner end of said portion 16 againstwhich the washer 18 abuts, and said washer is provided with a polygonalcentral opening 20 fitting the stem 10 so that it cannot rotate on thelatter. Provided diametrically opposite each other on the outer face ofthe washer 18 are a pair of donble-acting or V-shaped ratchet teeth 21,and formed at similar points in the inner end of the head 13 aresimilarly shaped recesses 22 within which the teeth 21 are seated by thespring 17 which projects the bolt. Thus, the stem 10 and washer 18 beingrestrained against rotation relative to the casing 18, the head 13 willbe prevented from accidental rotation when the teeth 21 are seated inthe recesses 22, as is obvious. However, the head 18 may be forcibly ormanually turned to the desired adjusted relaion on the threaded portion16 of the stem 10, the spring 1'? yielding to permit the necessaryinward di placement of the Washer 18 during the operation, due to theteeth 21 successively passing out of and again into the recesses 22 ofthe head 18. In this way, the adjustment is obtained in an effective andsimple manner or without unduly complicating the structure, the ratchetwasher being urged to retaining position by the same spring which causesthe projection of the catch bolt.

From the foregoing description it is be lieved that the construction andoperation as well as the advantages of the present invention will bereadily understood and appreciated by those skilled in the cart.

What we claim as new is 1. A double-acting catch comprising a casing, a.spring projected catch bolt including a stem slidable in and held fromrotation relative to the casing and a tapered-nose head adjustablythreaded on the stem and rotatably and slidablyfitted in the casing, anddoubleacting ratchet means associated with the stem and head to hold thelatter against accidental rotation.

2. A double-acting catch comprising a casing, a spring projected catchbolt including a stem slidable in and held from rotation relative to thecasing and a tapered-nose head adjustably threaded on the stem androtatably and slid-ably fitted in the casing, and doubleacting ratchetmeans associated with the stem and head to hold the latter againstaecidental rotation, said last named means embodying a washer slidablebut restrained from rotation on the stem and having ratchet teeth on itsouter face, said head having ratchet notches in its inner end forco-operation with said teeth, the projecting spring for the catch boltbeing engaged with the washer to urge it against the head.

3. A double-acting catch comprising a hollow cylindrical casing havingan inner end wall formed with a central non circular opening, a catchbolt including a tapered-nose head rotatable and slidable in the outerend of the casing and having an axial threaded socket in its inner endand V-shaped'notches at opposite sides of the socket and a stem slidablethrough and fitted in the opening of the casing to be held from turningrelative to the latter, said stem having a threaded end adj ustablyengaged in the socket of the head, a washer slidably engaged on the stemto be held from rotation on the latter and having ratchet teeth on itsouter face for reception in the notches of the head, a spring interposedbetween the washer and the inner end of the casing for projecting thebolt and yieldingly urging the washer against the head with the teethengaged in said notches, and means to limit projection of the bolt.

In testimony whereof we affix our signatures.

JOHN HUBERT NIESSEN. HUBERT WVALTER NIESSEN.

